package com.uroad.liaoningpos.util;


import android.app.DownloadManager;
import android.app.DownloadManager.Request;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.webkit.MimeTypeMap;


import com.uroad.liaoningpos.common.GlobalData;

import java.io.File;
import java.text.DecimalFormat;
import java.util.Locale;

public class DownLoadUtils {
	/**
	 * 换算文件的大小
	 */
	public static String FormetFileSize(long fileSize) {// 转换文件大小
		if (fileSize <= 0) {
			return "0M";
		}
		DecimalFormat df = new DecimalFormat("#.00");
		String fileSizeString = "";
		if (fileSize < 1024) {
			fileSizeString = df.format((double) fileSize) + "B";
		} else if (fileSize < 1048576) {
			fileSizeString = df.format((double) fileSize / 1024) + "K";
		} else if (fileSize < 1073741824) {
			fileSizeString = df.format((double) fileSize / 1048576) + "M";
		} else {
			fileSizeString = df.format((double) fileSize / 1073741824) + "G";
		}
		return fileSizeString;
	}

	/**
	 * 打开文件 俩参数必须填一个
	 * @param filePath 文件路径
	 * @return
	 */
	public static Intent openFile(String filePath){
		File file = new File(filePath);
		if(!file.exists()) return null;
        /* 取得扩展名 */
		String end=file.getName().substring(file.getName().lastIndexOf(".") + 1,file.getName().length()).toLowerCase(Locale.ENGLISH);
        /* 依扩展名的类型决定MimeType */
		if(end.equals("m4a")||end.equals("mp3")||end.equals("mid")||
				end.equals("xmf")||end.equals("ogg")||end.equals("wav")){
			return getAudioFileIntent(filePath);
		}else if(end.equals("3gp")||end.equals("mp4")){
			return getAudioFileIntent(filePath);
		}else if(end.equals("jpg")||end.equals("gif")||end.equals("png")||
				end.equals("jpeg")||end.equals("bmp")){
			return getImageFileIntent(filePath);
		}else if(end.equals("apk")){
			return getApkFileIntent(filePath);
		}else if(end.equals("ppt")){
			return getPptFileIntent(filePath);
		}else if(end.equals("xls")){
			return getExcelFileIntent(filePath);
		}else if(end.equals("doc")){
			return getWordFileIntent(filePath);
		}else if(end.equals("pdf")){
			return getPdfFileIntent(filePath);
		}else if(end.equals("chm")){
			return getChmFileIntent(filePath);
		}else if(end.equals("txt")){
			return getTextFileIntent(filePath,false);
		}else{
			return getAllIntent(filePath);
		}
	}

	//Android获取一个用于打开APK文件的intent
	public static Intent getAllIntent(String param ) {

		Intent intent = new Intent();
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		intent.setAction(Intent.ACTION_VIEW);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri,"*/*");
		return intent;
	}
	//Android获取一个用于打开APK文件的intent
	public static Intent getApkFileIntent(String param ) {

		Intent intent = new Intent();
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		intent.setAction(Intent.ACTION_VIEW);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri,"application/vnd.android.package-archive");
		return intent;
	}

	//Android获取一个用于打开VIDEO文件的intent
	public static Intent getVideoFileIntent(String param ) {

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
		intent.putExtra("oneshot", 0);
		intent.putExtra("configchange", 0);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "video/*");
		return intent;
	}

	//Android获取一个用于打开AUDIO文件的intent
	public static Intent getAudioFileIntent(String param ){

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
		intent.putExtra("oneshot", 0);
		intent.putExtra("configchange", 0);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "audio/*");
		return intent;
	}

	//Android获取一个用于打开Html文件的intent
	public static Intent getHtmlFileIntent(String param ){

		Uri uri = Uri.parse(param ).buildUpon().encodedAuthority("com.android.htmlfileprovider").scheme("content").encodedPath(param ).build();
		Intent intent = new Intent("android.intent.action.VIEW");
		intent.setDataAndType(uri, "text/html");
		return intent;
	}

	//Android获取一个用于打开图片文件的intent
	public static Intent getImageFileIntent(String param ) {

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addCategory("android.intent.category.DEFAULT");
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "image/*");
		return intent;
	}

	//Android获取一个用于打开PPT文件的intent
	public static Intent getPptFileIntent(String param ){

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addCategory("android.intent.category.DEFAULT");
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
		return intent;
	}

	//Android获取一个用于打开Excel文件的intent
	public static Intent getExcelFileIntent(String param ){

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addCategory("android.intent.category.DEFAULT");
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "application/vnd.ms-excel");
		return intent;
	}

	//Android获取一个用于打开Word文件的intent
	public static Intent getWordFileIntent(String param ){

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addCategory("android.intent.category.DEFAULT");
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "application/msword");
		return intent;
	}

	//Android获取一个用于打开CHM文件的intent
	public static Intent getChmFileIntent(String param ){

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addCategory("android.intent.category.DEFAULT");
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "application/x-chm");
		return intent;
	}

	//Android获取一个用于打开文本文件的intent
	public static Intent getTextFileIntent(String param, boolean paramBoolean){

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addCategory("android.intent.category.DEFAULT");
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		if (paramBoolean){
			Uri uri1 = Uri.parse(param );
			intent.setDataAndType(uri1, "text/plain");
		}else{
			Uri uri2 = Uri.fromFile(new File(param ));
			intent.setDataAndType(uri2, "text/plain");
		}
		return intent;
	}
	//Android获取一个用于打开PDF文件的intent
	public static Intent getPdfFileIntent(String param ){

		Intent intent = new Intent("android.intent.action.VIEW");
		intent.addCategory("android.intent.category.DEFAULT");
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		Uri uri = Uri.fromFile(new File(param ));
		intent.setDataAndType(uri, "application/pdf");
		return intent;
	}

	/**
	 * 下载
	 * @param context 上下文对象
	 * @param downUrl 下载文件的url
	 * @return 下载文件的id
	 */
	public static long downLoad(Context context, String downUrl){
		Uri uri = Uri.parse(downUrl);
		Request request = new Request(uri);
		//设置漫游网络是否可以下载
		//		 request.setAllowedOverRoaming(false);
		//设置文件类型，可以在下载后自动打开文件
		MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
		String mimeString = mimeTypeMap.getMimeTypeFromExtension(MimeTypeMap.getFileExtensionFromUrl(downUrl));
		request.setMimeType(mimeString);

		//设置允许使用的网络类型，这里是移动网络和wifi都可以 
		//		 request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_MOBILE|DownloadManager.Request.NETWORK_WIFI); 
		//禁止发出通知，既后台下载，如果要使用这一句必须声明一个权限：android.permission.DOWNLOAD_WITHOUT_NOTIFICATION 
		//request.setShowRunningNotification(false); 
		//在通知栏中显示，默认就是显示的
		request.setNotificationVisibility(Request.VISIBILITY_VISIBLE);
		//显示下载界面 
		request.setVisibleInDownloadsUi(true);
		//request.setDestinationInExternalFilesDir(this, null, "tar.apk");
		DownloadManager downloadManager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);
		long id = downloadManager.enqueue(request);
		//TODO 把id保存好，在接收者里面要用，最好保存在Preferences里面
		SharedPreferences sp = context.getSharedPreferences(GlobalData.download_id_sp, Context.MODE_PRIVATE);
		Editor editor = sp.edit();
		editor.putLong(GlobalData.download_id, id);
		editor.commit();
		return id;

	}


	public static void downLoadForView(Context context, String downLoadUrl){
		Uri uri = Uri.parse(downLoadUrl);
		Intent intent = new Intent(Intent.ACTION_VIEW, uri);
		context.startActivity(intent);
	}
}
